<%--
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  User: acer
  Date: 2024/9/18
  Time: 17:17
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--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>session内置对象计数器</title>
    <style>
        h1{
        color:red;
        text-align:center;
        size:7px;
        }
        p{
            color: green;
            text-align: center;
            font-size: 5px;
        }
    </style>
</head>
<body>
<%! int Num = 0;%>
<%
    if (session.isNew()){
        Num+=1;
        session.setAttribute("Num",Num);//将Num变量存入session
    }
%>
<h1>session计数器</h1>
<p>
    您是第
    <%=session.getAttribute("Num")%>
    个访问本网站的用户
</p>
</body>
</html>
